Mark (Mused and Abused)

Mark is Roger's sponsor when he tries to clean up his act and get off of heroin in "Mused and Abused".

When Roger find success as an artist by causing Klaus pain, the latter leaves to start a new life. Without his 'muse', Roger hits rock bottom but Klaus still refuses to help him. undeterred, Roger cleans up and starts again, hosting a new show at The Chimdale Cultural Center where he thanks those that helped him.